Color.Equality(Color, Color) 运算符

定义

测试两个指定的 Color 结构是否等效。Tests whether two specified Color structures are equivalent.

public:
 static bool operator ==(System::Drawing::Color left, System::Drawing::Color right);
public static bool operator == (System.Drawing.Color left, System.Drawing.Color right);
static member ( = ) : System.Drawing.Color * System.Drawing.Color -> bool
Public Shared Operator == (left As Color, right As Color) As Boolean

参数

left
Color

相等运算符左侧的 ColorThe Color that is to the left of the equality operator.

right
Color

相等运算符右侧的 ColorThe Color that is to the right of the equality operator.

返回

如果两个 true 结构相等,则为 Color;否则为 falsetrue if the two Color structures are equal; otherwise, false.

示例

下面的代码示例演示 Equality 运算符和 SystemColors 类。The following code example demonstrates the Equality operator and the SystemColors class. 此示例旨在与包含名为 Button1的按钮的 Windows 窗体一起使用。This example is designed to be used with a Windows Form that contains a button named Button1. 将以下代码粘贴到窗体中,并将 Button1_Click 方法与按钮的 Click 事件关联。Paste the following code into your form and associate the Button1_Click method with the button's Click event.

void Button1_Click( System::Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
   if ( this->BackColor == SystemColors::ControlDark )
   {
      this->BackColor = SystemColors::Control;
   }
}
private void Button1_Click(System.Object sender, System.EventArgs e)
{

    if (this.BackColor == SystemColors.ControlDark)
    {
        this.BackColor = SystemColors.Control;
    }
}
Private Sub Button1_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button1.Click

    If (Color.op_Equality(Me.BackColor, SystemColors.ControlDark)) Then
        Me.BackColor = SystemColors.Control
    End If
End Sub

注解

此方法比较 Color 结构的 ARGB 值。This method compares more than the ARGB values of the Color structures. 它还比较了某些状态标志。It also does a comparison of some state flags. 如果只想比较两个 Color 结构的 ARGB 值,请使用 ToArgb 方法比较它们。If you want to compare just the ARGB values of two Color structures, compare them using the ToArgb method.

适用于